The extension works wonders.
SobiPro is a very flexible directory management tool, with plenty options to extend its core functions.
My only (light) concern is the lack of a downloadable documentation. Browsing the many pages of the documentation online might be a pain sometimes, particularly for people living with narrow Internet connections like me.
Since I discovered this extension, the solution is obvious: jDiction solves most of the common problems we get with multilingual websites.
Even if the software is a 1.0 prerelease version it works wonders, the documentation is neat and the developer ready to help through his support forum: a winning combo!
Love it plainly!